7a4fc48841f5d9027d0b50ae6d5fe1a68a3c8fb25e7ae388de53dedb21c03ed4

Analysis

max time kernel
92s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2024 22:48

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General

Target

SmartTool.dll
Size

106KB
MD5

c3fe27e59dba45b00172fb0e556951cb
SHA1

39cd86014029a7d1080250650cb79eec6e280d19
SHA256

5caad6897762c1781d9fe1227b068a940a50ffca7cb4b563116a5b3f14f4a45b
SHA512

c7511156ebaea6de4f06961d881389f67843e9e6550dd05de03d500b59d1beebe5e2808be85e2e67be91780d53013ef0ff29937cbb7c6ebc2eecba4587448ac1
SSDEEP

3072:w/NCtMw7QJX4+AuPHsPs8JoUmj7/ijA++g:wMYP8qh//1

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{2D891923-34B7-4186-9B47-752624535DC1}	regsvr32.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\SmartTool.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\TypeLib\ = "{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl.1\ = "SmartToolCtl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl.1\CLSID\ = "{2D891923-34B7-4186-9B47-752624535DC1}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl\ = "SmartToolCtl Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\ = "SmartToolCtl Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\SmartTool.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\ = "ISmartToolCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl\CurVer\ = "SmartTool.SmartToolCtl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\ProgID\ = "SmartTool.SmartToolCtl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\TypeLib\ = "{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\ = "ISmartToolCtl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl\CLSID\ = "{2D891923-34B7-4186-9B47-752624535DC1}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\VersionIndependentProgID\ = "SmartTool.SmartToolCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{2D891923-34B7-4186-9B47-752624535DC1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\ = "SmartTool 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartTool.SmartToolCtl.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0F67A437-3336-4B2E-B211-D5BD3C6F5461}\TypeLib\ = "{E97662C9-6D8A-47A6-BBF6-17730FEE28F0}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 1552	1180	regsvr32.exe	85
PID 1180 wrote to memory of 1552	1180	regsvr32.exe	85
PID 1180 wrote to memory of 1552	1180	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\SmartTool.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\SmartTool.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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